KR101357355B1 - Magnetocaloric thermal generator - Google Patents

Abstract

The present invention has a high heat efficiency compact, multi-purpose magneto-calorific thermal, which has a maximum heat exchange coefficient and has been simplified to industrialize for a wide range of applications, both industrial and domestic. generator).

The heat generator 1 comprises one or more thermal modules 10 consisting of a plurality of thermal elements 40, which thermal elements circulate heat transfer fluid. Stacked and arranged such that channels are formed between the thermal elements for the purpose, the channels being hot and cold circuits circulating a heat transfer fluid of hot circuit flow. Separated into cold channels for circulating a heat transfer fluid of cold circuit flow, the hot channels and cold channels are alternately disposed between the thermal elements 40, the thermal elements being Inlet orifices and outlet orifices of fluids in communication with each other to distribute the flow of heat transfer fluid of each hot recovery circuit and cold recovery circuit to corresponding hot and cold channels, respectively. of It is characterized by having.

Application fields may include heating, tempering, air conditioning or refrigeration fields installed in industrial and domestic applications.

Magnetic Heat Generator, Magnetic Heat, Thermal Element, Thermal Module, Hot, Cold, Hot Channel, Cold Channel.

Description

Magnetic heat generator {MAGNETOCALORIC THERMAL GENERATOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magneto-calorific thermal generator, wherein the magnetic heat generator includes: thermal elements based on a magneto-calorific material; Magnetic means arranged to cause changes in the magnetic field in the fields to change their temperature, and calories, ie, heat and free, emitted by the thermal elements according to a functional cycle. Collector circuits called "hot" and called "cold", in which separate heat transfer fluids, each intended to recover cold air, are circulated. Means for connecting the recovery circuits to two or more separate recovery circuits consisting of recovery circuits and external circuits designed to utilize the recovered hot and cold air. ) Is included.

The new heat generator, using certain materials with a self-heating effect, provides a very interesting and ecological alternative to existing generators that will disappear in the future in terms of sustainable development and reduced greenhouse effect. However, in order to provide economically viable and good thermal efficiency while keeping in mind very short cycle times, small temperature gradients occurring and limited magnetic strength, these materials are released by these materials. The design of the means for recovering hot and cold air and the design of these generators are very important. The energy recovered is closely related to the mass of the magnetic-heat generating material, the strength of the magnetic field and the exchange time with the heat transfer fluid. The transfer factor of the heat exchanger is known to be related to the heat exchange area relative to the flow rate of the heat transfer fluid in contact with the heat exchange surface. Therefore, the larger the heat exchange area, the higher the transfer coefficient.

In existing generators, a recovery circuit is used as a means of recovery, which circuit is adapted to cross thermal elements through which a single heat transfer fluid is supplied alternately to a cold recovery circuit and a hot recovery circuit. As a result, this solution produces high thermal inertia, which greatly disadvantages the generator's energy efficiency.

The French patent application No. 05/08963, filed by the applicant, proposes a new generator design, in which two separate recovery circuits, a hot recovery circuit and a cold recovery circuit, traverse the thermal elements, each of the recovery circuits. There is a separate heat transfer fluid circulates. Each thermal element is a stack of ribbed plates of self-heat generating material that form a boundary between the passageways circulating the heat transfer fluid in a manner that forms two separate recovery circuits. It takes the form of a triangular insert consisting of: These column inserts are mounted to a plate provided with conduits and suitable housings connecting the corresponding recovery circuits of the other column inserts. This solution has the advantage of removing the thermal inertia of the heat transfer fluid, with one fluid for the hot recovery circuit and one fluid for the cold recovery circuit, increasing the heat efficiency of the generator by increasing the heat exchange surface area. You have an advantage. However, it has a disadvantage of being difficult to industrialize due to its high cost and non-modular form.

The present invention proposes a compact and versatile magnetic heat generator, which has a high energy efficiency and maximum transmission rate, is easy to industrialize at a reasonable cost and has a modular form to be applied to a wide range of both industrial and household applications. To overcome the shortcomings.

To this end, the present invention comprises one or more thermal modules consisting of a plurality of thermal elements arranged in stacks arranged to make a boundary between the channels for circulation of the heat transfer fluid, the channels being heat transfer in a hot recovery circuit. The hot channels through which the fluid flows and the heat transfer fluid of the cold recovery circuit are divided into cold channels through which the fluid flows. Provided is a heat generator of the type described above, characterized by having inlet and outlet orifices of fluid in communication with each other for dispensing.

This stage configuration allows the formation of thermal sub-assemblies, which are so-called thermal modules with parallel channels, which thermal modules can be connected together in series and / or in parallel. . Due to this configuration, the number of stacked thermal elements per thermal module can be varied according to the required fluid flow rate, and the number of parallel thermal modules can be varied according to the required temperature range. This can provide very large modularity.

The invention and its advantages will become more clearly understood from the following description of several embodiments given by way of non-limiting example with reference to the accompanying drawings.

1 is an exploded perspective view of a heat generator according to the present invention.

2 and 3 are perspective views of two types of examples of the generator of FIG.

4 is a perspective view of a thermal module included in the configuration of the generator of FIG.

FIG. 5 is a partial cross-sectional detail view of one end of the generator of FIG.

FIG. 6A is a front view of the thermal module of FIG. 4, FIG. 6B is an enlarged perspective view of detail A of FIG. 4, and FIG. 6C is a plan view of the edge of FIG. 6B.

FIG. 7A is a partial cross-sectional view of two thermal elements of the module of FIG. 4 showing two thermal sectors, and FIGS. 7B and 7C are cross-sectional views along the lines BB and CC of the thermal element of FIG. 6A.

8A is an axial cross-sectional view of the thermal sector, and FIG. 8B is a view of detail D. FIG.

FIG. 9A is an axial cross-sectional view of the thermal sector with the inserts engaged, and FIG. 9B is a view of detail E. FIG.

10A, 10B, 11A and 11B are front and back views of two variants of the thermal element according to the invention.

12 and 13 show variations of self-heat generating parts.

14 and 15 are perspective views showing variations of the self-heating inserts.

16A is a perspective view of a thermal sector according to another modification, and FIG. 16B is a perspective view of detail F. FIG.

17A is a perspective view of a first modification of the thermal module according to the present invention, and FIG. 17B is a perspective view of detail G;

FIG. 18A is a perspective view of a second variant of the thermal module according to the invention, FIG. 18B is a view of a sub-assembly of this module, and FIG. 18C is a view of detail H of FIG. 18B.

19A is a perspective view showing a third modification of the thermal module according to the present invention, and FIG. 19B is a view of detail I. FIG.

Referring to FIG. 1, the heat generator 1 according to the invention is a stack of six stacked rows, connected by distributor discs 20 and closed by sealing flanges 30. Modules 10. The number and configuration of the thermal modules 10 will vary depending on the desired performance. In the seal flange 30 shown there are two feed orifices, which are designed to be connected to an external hot circuit and an external cold circuit (not shown) using hot and cold air generated by the heat generator 1 respectively. There are four orifices 31, 32, of 31 and two discharge orifices 32. The connection can be made on one side or both sides of the heat generator 1, depending on the requirements. The distributor disks 20 allow the hot and cold recovery circuits of the other thermal modules 10 to be connected together in a series, parallel, or series / parallel combination and to connect with external hot and cold circuits. It has distribution grooves 22 and orifices 21. The distributor disks 20 may be arranged in pairs, each disk being dedicated to one of the recovery circuits, as shown in FIGS. 1 and 4. The distributor disc also has a special arrangement of orifices 21 and dispensing grooves 22 to perform the same function as above. It may be formed in the form of double-sideed single discs (not shown).

In the example of FIG. 1, the heat generator 1 has an axis 2 supporting two magnetic assemblies 3 which rotate or move axially and which are opposed in the radial direction. , Driven by any actuator (not shown) of known type providing continuous, discontinuous, sequential or reciprocating motion. The number, location and type of magnetic assemblies 3 can vary and can be determined depending on the structure of the thermal modules 10. The magnetic assemblies 3 may be formed of permanent magnets, electromagnets, superconducting magnets or any other magnets, with permanent magnets being advantageous in terms of size, ease of use and low cost. These permanent magnets may be solidified, sintered, glued, or laminated in conjunction with one or more magnetizable materials that concentrate and orient magnetic field lines. For further sealing, the thermal modules 10 can be embedded in an inner sleeve 4 and an outer sleeve 5 (see FIG. 5). In this case, the distal ends of these sleeves 4, 5 are joined to the sealing flange 30 by seals 33. If the structure of the thermal modules 10 is such that sufficient sealing can be obtained, the inner sleeve 4 and / or the outer sleeve 5 can be omitted.

The thermal modules 10 may be surrounded by an armature 6, preferably of ferromagnetic material, the main function of which is the magnetic flux generated by the magnetic assemblies 3. to block flux. In a variant embodiment not shown, the magnetic flux generated by the magnetic assemblies 3 can be interrupted by further dynamic or static magnetic assemblies disposed on the outer periphery. The thermal modules 10 are clamps mounted on the shaft 2, for example, by tie rods 34 (see FIG. 5) or bearings extending between two sealing flanges 30. It can be tightened and assembled using any known means such as clamps (not shown). Other modes of assembly may also be considered, an essential element being the mechanical support of the thermal modules with each other and the sealing of the generator's internal hot and cold recovery circuits.

In the other examples shown, the heat generator 1 has a circular shape. The thermal modules are arranged in an annular fashion around the axis 2 supporting the magnetic assemblies 3. The invention also includes a heat generator having a straight form (not shown) in which the thermal elements are arranged in a linear manner and the magnetic means are driven in reciprocating or sequential movement.

The thermal modules 10 may be mounted on a base 7 by any known means, as shown in FIG. 2. In this example, the heat generator 1 comprises two assemblies of five thermal modules 10 connected by distributor disks 20 (not shown) and closed by sealing flanges 30 and have. The base 7 supports an actuator 8 which is parallel to the axis of the generator and connected to the axis of the generator by any known type of transmission. The actuator 8 may be arranged in line with the shaft 2 and directly connected to the shaft 2. In Fig. 3, the heat generator 1 comprises four assemblies, each assembly consisting of six thermal modules 10 mounted on a base 7 in the form of a head to foot. have. One actuator 8 is connected to the axes 2 of each assembly by any type of mechanical transmission (not shown) known in the art. These examples provide ideas of several possible forms. Due to the structure of the module, the heat generator 1 according to the invention can be formed in an unlimited form depending on the fluid flow rate and the desired heating or cooling capacity required for each application. The actuator 8 may consist of any system that generates mechanical torque, such as for example a wind generator, a hydraulic turbine, an internal combustion engine, an electric motor, a motor based on animal or physical activity energy, a rotary actuator or other device. . In the case of electric actuators, energy can be obtained from photoelectric transducers, solar cells, wind generators, mains electricity, generators or other devices.

Each thermal module 10 consists of N thermal elements 40, which are of the same or complementary geometry so that they can be stacked. An example of a thermal module is shown in FIG. 4, which includes 17 thermal elements 40 in the form of flat rings stacked axially. The thermal elements 40 are shown in detail in FIGS. 6a-6c and 7a-7c, characterized by the formation of channels 50 for the circulation of the heat transfer fluid between the thermal elements. The channels become so-called hot channels through which the fluid of the hot recovery circuit flows and so-called cold channels through which the fluid of the cold recovery circuit flows. The hot and cold channels 50 are arranged between the thermal elements 40 such that each thermal element 40 has a hot channel 50 on one side and a cold channel 50 on the other side. Alternately provided. The channels 50 are, for example, 0.01 to 10 mm, preferably 0.15 to 1.5 mm, to generate a laminar or low turbulence flow, with or without fluid vortices. It has a small thickness in the range, whereby the flow of hot heat transfer fluid flows between two adjacent thermal elements 40 and the flow of cold heat transfer fluid flows between the next two adjacent thermal elements. The thermal elements 40 have outlet orifices 52 and inlet orifices arranged to communicate channels 50 of a given recovery circuit in parallel form. In addition, the thermal elements 40 may be divided into several separate thermal sectors 53, equally or unequal, each sector being a channel 50, an inlet orifice 51. And an outlet orifice 52 to form parallel circuits in each flow of fluid. In this way, the flow of heat transfer fluid in each recovery circuit is first divided by the number S / 2 of the thermal sectors 53 and then by the number N / 2 of the second stacked thermal elements 40. . The staged distribution of the flow of heat transfer fluid allows for a significant reduction in the flow rate and velocity of the flow of fluid in each channel 50, thereby increasing the transfer rate and at the same time reducing energy loss.

In a version not shown, spacer plates, such as Teflon sheets or the like, may be inserted between the thermal elements 40 to delimit the channels 50 and provide a seal. .

In the examples shown in FIGS. 4, 6A-6C and 7A-7C, the thermal elements 40 of the thermal module 10 are divided into eight identical thermal sectors 53 at an angle of about 45 °. It is divided. FIG. 7A shows the passage of heat transfer fluid in the thermal sectors 53 of two adjacent thermal elements 40. Each thermal sector 53 is laid transversely to communicate with the inlet orifice 51 and the outlet orifice 52 and the channel 50 of the next thermal element 40, which are in transverse communication with its channel 50. It has four orifices of inlet orifice 51 and outlet orifice 52. Depending on the angular position of the magnetic assemblies 3 relative to the thermal module 10, the heat transfer fluid circulating in the channels 50 of the other thermal sectors 53 may be active or passive. do. In the heat sectors 53 which are affected by the magnetic field, the heat transfer fluid of the hot recovery circuit is active and in the other heat sectors 53 which are not affected by the magnetic field, the heat transfer fluid of the cold recovery circuit is active. At the same time, the heat transfer fluid of the cold and hot recovery circuits in the same sectors is passive.

In this example, each thermal element 40 has a plurality of thermally conductive inserts supported by the support 70, which takes up most of the area of the support 70. The inserts 60 are in the shape of a circular sector and are made by cutting, machining or casting a self-heat generating material, for example. The term "self-heat generating material" refers to, for example, gadolinium alloys including gadolinium (Gd), silicon (Si) and the like, manganese alloys including germanium (Ge), iron (Fe) and the like, magnesium (Mg), phosphorus ( P), a lanthanum alloy, a nickel (Ni) alloy, any other equivalent magnetically actionable material or material produced in part or in whole from a self-heating material, such as an alloy, or a powder, particle, solid Or a combination of other self-heat generating materials, which appears in the form of an assembly of stacked grooved plates forming porous blocks, mini or micro channels. The choice between the self-heat generating materials depends on the heating or cooling power required and the temperature ranges required.

The support 70 can be in a flexible or rigid state, with or without fillers, such as, for example, thermoplastics, elastomers, resins or other thermal insulation materials. It can be made from natural or synthetic materials. This may be achieved by 3D printing, etching, casting, injection or similar processes by machining, stereo lithography. Preferably the front and back surfaces are overmoulded around the inserts remaining visible. The support 70 functions as a spacer between the thermal elements 40 stacked to ensure the thickness of the channels 50, to hold the inserts 60, and to stack the thermal elements 40. The function of sealing between the thermal elements 40 when necessary, and, if necessary, to combine several functions such as indexing and / or positioning functions to facilitate assembly and to facilitate positioning of the thermal elements 40 to one another. It is. In a variant not shown, the support can be filled with particles or fibers of self-heat generating material to add thermal function.

An annular thermal element 40 is shown in detail in FIG. 7A, and cross-sectional views are shown in FIGS. 7B and 7C. This is represented by an approximately rectangular cross section, with recessed areas on the front face forming the channel 50 for circulation of the first heat transfer fluid, and the next thermal element 40 for circulation of the second heat transfer fluid. ) Has a flat area on its back that closes the channel 50. In this case the channel 50 is formed by the front of the inserts 60 at the bottom and by the edges of the support 70 at the sides. The flat rear face of the thermal element 40 is formed by the rear face of the inserts 60 and the support 70. On the front of the support 70, one or more continuous or discontinuous central ribs that divide the channel 50 into two or more portions to improve the distribution of fluid over the entire surface of the inserts 60. There may be (71). In another variant, not shown, the support 70 may have grooved regions on its front and back that form a channel 50 for the circulation of hot and cold heat transfer fluids. The front and rear surfaces of the support 70 form sealing surfaces that ensure the sealing of the channels 50 when the thermal elements 40 are stacked in a tight arrangement. It is clear that any other way of performing the same functions may be used as appropriate. In addition, the thickness of certain regions of the support 70 and / or the thickness of the inserts 60 can also be varied to affect the thickness of the fluid flow and thus the flow rate of the fluid.

The thermal elements 40 may have other forms. In each of FIGS. 10A and 10B, a front view and a rear view of a thermal element 40 having six identical separate thermal sectors 53 each composed of inserts 60 at an angle of approximately 60 °. 11A and 11B, thermal element 40 has only two identical separate thermal sectors 53, each consisting of inserts 60 at an angle of approximately 180 °. The inserts 60 in the form of sectors of the circle may have other geometric shapes or arbitrary shapes. Furthermore, they can be replaced with strips 61 as in the example shown in FIG. 12, which strips 61 have two column sectors 53 as shown in FIG. 11. May be used in thermal element 40. In addition, the inserts 60 may be replaced with a separate ring 62, or any other equivalent shape, to form interconnected inserts. In the same way, the different self-heat generating materials 60, 61, 62 have flat surfaces to promote disturbance-free fluid flow, as in the insert 60 of FIG. 14, or On the other hand, as in insert 60 of FIG. 15, it may have a relief feature that forms grooves 63 or similar shapes in at least one or more surfaces to increase the area of exchange with the heat transfer fluid. . Depending on the direction and shape of the grooves 63 relative to the flow of fluid, perturbations can be formed to increase the rate of delivery. The thermal element 40 shown in FIG. 16a has inserts 60 with inclined grooves 64 on both sides, details of which are shown in FIG. 16b. These inclined grooves 64 create a vortex in the flow of the fluid, commonly known as a vortex.

In a given thermal module 10, inlet orifices 51 and outlet orifices 52 of channels 50 of a given recovery circuit are provided side by side. At least the inlet orifices 51 preferably have a cross section that decreases in the direction of the fluid flow, so as to make the distribution of the heat transfer fluid uniform in the other channels 50. This structure is shown in Figures 8A and 8B, which allows a given volume of fluid to circulate at the same flow rate in each of the channels 50, and the same transfer rate can be obtained to reduce energy loss. . However, this structure requires that each of the thermal elements 40 have a different shape. Another solution is to form an insert 72 having orifices 73 of smaller cross section, according to the example shown in FIGS. 9A and 9B, which insert 72 has thermal elements 40 of the same cross section. Inside the inlet orifices. This solution greatly simplifies the industrial production of this structure. In addition, the insert 72 may align the thermal elements 40 with each other such that any rotation is prevented. It is clear that these examples can also be applied to outlet orifices 52 having a cross section that increases in the direction of fluid flow.

In a variant not shown, the thermal elements 40 of a given thermal module 10 may have an angular offset with respect to each other, such that the inlet orifices 51 and the outlet orifices 52 are axial. By forming a helical path without being aligned along, the entry and exit of the heat transfer fluid into and out of the channels 50 can be facilitated.

In addition, the thermal module 10 may have another structure. The thermal module 11 shown in FIGS. 17A and 17B has N thermal elements 41 in the form of flat rings stacked in the axial direction. Each thermal module 41 has round inserts 60 of self-heat generating material distributed in six thermal sectors 53, with a channel 50 zigzag across the inserts 60. Circulating. FIG. 18A shows an assembly of three thermal modules 12, each formed of three identical sub-assemblies assembled axially. One of the sub-assemblies is shown in FIG. 18B, which includes three thermal elements 42 in the form of radially stacked concentric rings, between which the channels ( 50) is formed. Each thermal element 42 has round inserts 60 of self-heat generating material distributed in six thermal sectors 53. In this variant, a combination of an axial stack and a radial stack is shown. In figure 19a an assembly of six identical row modules 13 assembled in an axial direction is shown. Each thermal module 13 contains 14 identical sub-assemblies in the form of sectors of a circle, which are assembled side by side to form a cylindrical tube. One sub-assembly is shown in detail in FIG. 19B, which includes eight thermal elements 43 in the form of nested strips, with channels 50 formed between each thermal element. It is done. Each of the thermal elements 43 may be made in whole or in part of a self-heat generating material.

The above examples are not limiting, and their purpose is to show the variety of possible structures of the thermal modules 10-13, which allow the generation of an infinite range of magnetic heat generators according to the invention.

In the same way, the chemical composition of the heat transfer fluid is selected to suit the required temperature range and to obtain maximum heat transfer. The fluid can be liquid, gas or diphase. In the case of liquids, for example, pure water can be used for positive temperatures and anti-freeze water such as glycolated products can be used for negative temperatures. Thus, the heat generator 1 makes it possible to avoid the use of corrosive fluids or the use of fluids harmful to humans or the environment.

All the parts comprising the heat generator 1 according to the invention can be mass produced using repetitive industrial processes. The modular and compact design of the heat generator 1 allows for the manufacture of standard thermal elements 40-43 and thermal modules 10-13, which allow for fluid flow rate and flow rate for a given application. Depending on the temperature range required, there are tmns to be connected, combined and assembled in series, parallel or series / parallel combinations. This design makes it possible to apply to a wide range of both industrial and home use at low cost and small dimensions, with performance unmatched by today's generators of this type.

Due to the stage structure of the heat generator 1, the flow of heat transfer fluid in each recovery circuit can be efficiently divided several times. Due to the stage distribution of the heat transfer fluid, the flow of fluid in each channel 50 can be split at the same rate, thereby reducing energy loss and increasing the transfer rate. The majority of the channels 50 increases the heat transfer area and, correspondingly, the transfer rate. In addition, due to the design of the thermal elements 10-13, the amount of inert material of the support 70 relative to the amount of self-heat generating material is greatly reduced, so that the thermal efficiency of the generator 1 for a given size is reduced. It is further improved.

The present invention is not limited to the described embodiments, and those skilled in the art can make any change or change while falling within the protection scope defined in the appended claims.

Claims (28)

Thermal elements 40-43 based on a magneto-calorific material and a change in the magnetic field at the thermal elements 40-43 to change the temperature of the thermal elements. Magnetic means 3 arranged to cause, and according to the functional cycle of the thermal elements, the heat released by the thermal elements when the thermal elements are under increasing state of the magnetic field, and the heat Two elements, a hot collector circuit and a cold collector circuit, each with separate heat transfer fluid circulated to recover the cold air released by the thermal elements when the elements are under reduced magnetic field. Connect the recovery circuits to at least two seperate collector circuits and external circuits designated to utilize the recovered hot and cold air. Is the magnetic heat generator (magneto-calorific thermal generator) (1) comprises means (means of connecting), The heat generator comprises at least one thermal module 10-13 consisting of a plurality of thermal elements 40-43, The thermal elements are arranged in a stack so that channels are formed between the thermal elements for circulation of the heat transfer fluid,  The channels are separated into hot channels through which heat transfer fluid of a hot collector circuit circulates, and cold channels through which heat transfer fluid of a cold collector circuit circulates, The hot and cold channels are alternately disposed between the thermal elements 40-43, wherein the thermal elements 40-43 are flows of the heat transfer fluid of the respective hot recovery circuit and the cold recovery circuit. To have inlet orifices 51 and outlet orifices 52 of fluid in communication with each other, so as to distribute to the corresponding hot channels 50 and the cold channels 50, respectively. , Characterized in the magnetic heat generator (1). The method of claim 1, The channels 50 have a thickness in the range of 0.01 mm to 10 mm, Characterized in the magnetic heat generator (1). The method of claim 2, The channels 50 have a thickness in the range of 0.15 mm to 1.5 mm, Characterized in the magnetic heat generator (1). The method of claim 1, The thermal elements 40-43 have recessed shapes to form the channels 50, Characterized in the magnetic heat generator (1). The method of claim 1, The thermal modules 10-13 have spacer plates inserted between the thermal elements 40-43 to form channels 50. Characterized in the magnetic heat generator (1). The method of claim 1, The inlet orifices 51 of the thermal elements 40-43 have a cross section that decreases in the flow direction of the heat transfer fluid to evenly distribute the heat transfer fluid to the associated channels 50. Characterized in the magnetic heat generator (1). The method of claim 1, The outlet orifices 52 of the thermal elements 40-43 have a cross section that increases in the flow direction of the heat transfer fluid to bring the heat transfer fluid together before the heat transfer fluid leaves the heat module. Characterized in the magnetic heat generator (1). 8. The method according to claim 6 or 7, The inlet orifices 51 and outlet orifices 52 having a variable cross section are arranged in an insert 72 disposed across the thermal elements 40-43. , Characterized in the magnetic heat generator (1). The method of claim 1, The thermal elements 40-43 are offset relative to each other so that the inlet orifices 51 and the outlet orifices 52 are aligned in a helical path, Characterized in the magnetic heat generator (1). The method of claim 1, The thermal module has a rectilinear configuration, wherein the thermal elements are linear, stacked horizontally, vertically or in a combination of horizontal and vertical, Characterized in the magnetic heat generator (1). The method of claim 1, The thermal module has the form of a circle, wherein the thermal elements 40-43 are annular, stacked in an axial direction, in a radial direction or in a combination of axial and radial directions, Characterized in the magnetic heat generator (1). The method of claim 1, The thermal elements 43 are formed of parts of a self-heat generating material, Characterized in the magnetic heat generator (1). The method of claim 1, The thermal elements 40-42 comprise one or more parts 60-62 of a self-heat generating material supported by a support 70, Characterized in the magnetic heat generator (1). 14. The method of claim 13, The support 70 is overmolded around the parts 60-62 of self-heat generating material, Characterized in the magnetic heat generator (1). 14. The method of claim 13, The support 70 is made of a thermally insulating material, Characterized in the magnetic heat generator (1). 16. The method of claim 15, Said thermally insulating material being filled with particles of a thermally conducting material, Characterized in the magnetic heat generator (1). 14. The method of claim 13, The parts 60 of the self-heat generating material are inserts of geometric or circular sector shape, Characterized in the magnetic heat generator (1). The method according to claim 12 or 13, The parts 60-62 of the self-heat generating material have flat surfaces, Characterized in the magnetic heat generator (1). The method according to claim 12 or 13, The parts 60-62 of the self-heat generating material have a relief feature on one or more of their faces, Characterized in the magnetic heat generator (1). 20. The method of claim 19, At least one of the faces has grooves 63, 64 arranged to form a vortex in the heat transfer fluid, Characterized in the magnetic heat generator (1). The method of claim 1, The thermal elements 40-43 are divided into two or more separate thermal sectors, each thermal sector having a fluid flow channel 50 by the inlet orifice 51 and the outlet orifice 52. Having a Characterized in the magnetic heat generator (1). 22. The method of claim 21, The inlet orifices 51 and outlet orifices 52 of the column sectors 53 of the given column elements 40-43 are connected, in series and in parallel, to the corresponding hot or cold recovery circuits. Or connected in a combination of serial and parallel, Characterized in the magnetic heat generator (1). The method of claim 1, Two or more thermal modules 10-13, wherein the hot recovery and cold recovery circuits of the thermal modules are arranged, in series, in parallel, or in series and by distributor discs 20. To be connected in parallel combination, Characterized in the magnetic heat generator (1). The method of claim 1, And sealing flanges 30 arranged to seal the channels 50 of the distal thermal elements 40-43 and to mechanically support the thermal elements 40-43 together. , The sealing flanges 30 have supply orifices 31 and discharge orifices 32 to connect the hot recovery and cold recovery circuits to external circuits, Characterized in the magnetic heat generator (1). The method of claim 11, Comprising an inner sleeve 4 and an outer sleeve 5 arranged to seal the thermal modules 10-13, Characterized in the magnetic heat generator (1). The method of claim 11, Internal magnetic assemblies (3) supported by a shaft (2) driven rotationally or translationally, and magnetic flux generated by the magnetic assemblies (3) Including an outer armature 6 arranged to close, Characterized in the magnetic heat generator (1). The method of claim 11, Comprising internal and external magnetic assemblies 3, wherein at least one of the magnetic assemblies 3 is supported by a shaft 2 which is driven to rotate or translate. Characterized in the magnetic heat generator (1). The method of claim 1, Wherein the heat transfer fluid is a liquid, a gas or a diphase, Characterized in the magnetic heat generator (1).

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